Valve for oil-well pumps



(2m Model.)

Patented Aug. 8

UNITED STATES PATENT OFFICE.

JOSEPH ONEIL, or TAYLORSTOWN, PENNSYLVANIA.

VALVE FOR OIL-W ELL PUMPS.

SPECIFICATION forming part of Letters Patent No. 562,750, dated August8, 1893. Application filed March 6, 1893- Serial No. 464,881. (Nomodel.)

To all whom it may concern:

Be it known that I, J OSEPHOFN EIL, a citizen of the United States,residing at Taylorstown, in the county of Washington and State ofPennsylvania, have invented certain new and useful Improvements inValves for Oilcombination of parts as will be fully describedhereinafter.

In the accompanying drawings, Figure 1 is a front elevation of myimproved valve which is constructed in accordance with my invention, andshowing a portion of the sucker cups attached in position at the lowerend. Fig. 2 is a sectional side elevation of the same. Fig. 3, is asectional plan view taken on the line XX of Fig. 1. Fig. 4. is anenlarged sectional .view taken through one of the valve openings,showing the means of holding the washers therein.

To put my invention into practice I provide a casting 2 having aninternal opening 8, a recess 1, formed at either side, a squareportion 3for applying a wrench, a male threaded portion 5 at the top to connectthe same to the sucker rods, and a female thread formed at the base ofthe opening 8, to attach the same to the sucker cups 6. Formed in therecess 1 are two or more openings 7 com- 12, attached to the casting.

municating with the interior, and each of the saidopenings surroundedwith annular recesses 9, having inwardly tapering sides, whereby aflexible washer 10, after being forced in position will remain fast.These openings 7 are covered by a plate 11, held loosely in position bymeans of a fiat spring 13, which in its turn is held by a short postThis spring is prevented from turning by one end entering a recess 14formed at the base of the square portion 3. This valve thus constructedis 0perated in the working barrel in the same manner as those now incommon use, and being simple in its construction will not get out ofrepair.

Having thus described my invention, I claim- The herein describedworking check valve for oil and other pumps, consisting of the shell 2,having a recess 1 formed at one or more sides of the same, the valveopenings 7 formed in the said recess, the washers 1O surrounding saidvalve, the annular recesses 9 having inwardly tapering sides to confinethe said washers, the plate 11 covering the said valve openings, thespring 13 and means for holding the same in position, and means forpreventing the said spring from turning, all arranged and combined forservice, substantially as and for the purpose described.

In testimony that I claim the foregoing I hereunto aflix my signaturethis 10th day of December, A. D.' 1892.

JOSEPH ONEIL. [L. 8.]

In presence of ALBERT J. WALKER, M. E. HARRISON.

